Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/30/2025
Index Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 07/01/2025 21:35:42 70.23,-147.34 47.16 07/01/2025 21:35:17 70.22,-147.31 47.15 1.37 25
2 07/01/2025 22:25:12 -70.12, 20.14 132.95 07/01/2025 22:25:59 -70.13, 20.14 132.94 1.59 47
3 07/04/2025 13:02:44 -70.36, 161.09 132.50 07/04/2025 13:01:31 -70.44, 160.81 132.40 13.87 73
4 07/04/2025 13:52:12 70.20, -31.50 47.35 07/04/2025 13:52:13 70.22, -31.53 47.37 2.26 1
5 07/04/2025 14:41:42 -70.09, 135.98 132.75 07/04/2025 14:42:54 -70.08, 136.00 132.77 1.80 72
6 07/07/2025 05:19:15 -70.27, -83.16 132.32 07/07/2025 05:18:24 -70.29, -83.17 132.29 1.81 51
7 07/07/2025 06:08:42 70.16, 84.33 47.58 07/07/2025 06:09:08 70.16, 84.33 47.59 0.64 26
8 07/07/2025 06:58:28 -69.18,-109.39 133.34 07/07/2025 06:59:33 -69.18,-106.91 133.44 98.11 65
9 07/09/2025 20:46:00 71.14,-133.58 48.83 07/09/2025 20:44:54 71.21,-136.24 49.01 95.68 66
10 07/09/2025 21:35:45 -70.22, 32.65 132.05 07/09/2025 21:35:19 -70.24, 32.68 132.03 2.33 26
11 07/09/2025 22:25:12 70.11,-159.87 47.85 07/09/2025 22:26:03 70.12,-159.82 47.86 2.02 51
12 07/12/2025 13:02:43 70.31, -18.96 48.40 07/12/2025 13:01:32 70.33, -19.01 48.44 2.83 71
13 07/12/2025 13:52:13 -70.21, 148.53 131.69 07/12/2025 13:52:13 -70.19, 148.53 131.71 1.95 0
14 07/12/2025 14:41:43 69.93, -44.23 48.05 07/12/2025 14:42:54 69.91, -43.74 48.01 18.87 71

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 6/30/2025
SNOs_Map_LANDSAT-8_NPP_20250630.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 06/30/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP